TY  - BOOK
AU  - Sengupta S Sankar
AU  -  Yeo Gee Kin
TI  - Embadded invariants:  A contribution to forecasting   
T2  - Applied statistics and econometries.6
U1  - X:89Q1:(B), L7 
PY  - 1977///
CY  - Germany
PB  - Vandenboeck & Ruprecht        
KW  - Production Control
ER  -